A transmission mechanism and assembly structure for a trenching and ridging machine

Abstract

A transmission mechanism and assembly structure for a ditching and ridging machine are disclosed, relating to the field of agricultural equipment technology. By improving the assembly structure and transmission of the ditching and ridging machine, small ditching and ridging machines that meet different farming requirements can be produced while controlling costs. The machine includes a power unit, the output end of which is fixedly equipped with a spindle box. A tool box and a travel box are respectively connected to both sides of the bottom of the spindle box. The tool box and travel box are inclinedly mounted on the spindle box and are in a V-shape. The tool box includes multiple connecting sections connected in sequence. The connecting section at one end of the tool box is fixedly connected to the spindle box, and the connecting section at the other end is used for tool mounting.

Description

Technical Field

[0001] This utility model relates to the field of agricultural equipment technology, specifically to a transmission mechanism and assembly structure of a ditching and ridging machine. Background Technology

[0002] A ditching and ridging machine is a specialized piece of agricultural machinery used for tilling and ridging operations. It integrates weeding, ridging, fertilizing, and hilling, and is suitable for the heavy, clayey characteristics of red soil. It can break up and redistribute soil, reducing soil compaction, improving the stability of deep fertilizer application, and promoting deep crop growth. It is suitable for planting crops such as sugarcane, tobacco, ginger, and scallions. For smaller ditching and ridging machines, the main structure includes a power system primarily composed of an engine, a main transmission system, a running gear box and wheels, and a tool box and tools. The requirements for the tools vary depending on the soil characteristics; some soils require deep tillage, while others only require shallow tillage.

[0003] The needs for cultivating soil at varying depths are mostly distributed across different regions, and some solutions exist. For example, invention application No. 201811107871.8 discloses a frame structure for a front-mounted ditching machine, which adjusts the cultivation depth through a height adjustment mechanism; alternatively, blades with different cultivation depths are also used. However, in actual production, these solutions are not suitable for small ditching and ridging machines. Small ditching and ridging machines have relatively low structure and cost, and are usually not equipped with blades that can handle different depths. Due to cost and structural limitations, it is also impossible to install a height adjustment mechanism for adjustment.

[0004] In actual production, one could choose to produce small ditching and ridging machines with different tillage depths and sell different specifications in different regions; however, this approach would require setting up a new production line, which would be too costly. Therefore, how to produce different specifications of mini-tillers while ensuring cost has become an urgent problem to be solved. Utility Model Content

[0005] I. Technical problems to be solved

[0006] This utility model addresses the shortcomings of existing technologies by proposing a transmission mechanism and assembly structure for a ditching and ridging machine. By improving the assembly structure and transmission of the ditching and ridging machine, small ditching and ridging machines that meet different farming requirements can be produced while controlling costs.

[0007] II. Specific Technical Solutions

[0008] A trenching and ridging machine assembly mechanism includes a power unit, the output end of which is fixedly equipped with a spindle box; a tool box and a travel box are respectively connected to the two sides of the bottom of the spindle box, the tool box and the travel box are inclinedly arranged on the spindle box, and the tool box and the travel box are arranged in a figure-eight shape; the tool box includes multiple connecting sections connected in sequence; and the connecting section at one end of the tool box is fixedly connected to the spindle box, and the connecting section at the other end is used for tool installation.

[0009] Implementation principle and working principle:

[0010] This design connects the power unit to the spindle box and employs a figure-eight shaped inclined toolbox and travel box. The toolbox utilizes a multi-segment connecting section design; by changing the number or angle of the connecting sections, the ground clearance and tillage depth of the tools can be physically adjusted. This allows for adjustments to the length or number of connecting sections based on the tillage depth requirements of different regions, achieving adaptability to various terrains. This achieves the goal of adjusting tillage depth without replacing the entire machine or major components, greatly enhancing the equipment's adaptability to different regions and crop cultivation needs. The figure-eight structure improves the overall stability of the machine during operation and effectively resists lateral torque.

[0011] Preferably, a reinforcing rod is fixedly installed on the side of the traveling box close to the tool box; the other end of the reinforcing rod is fixedly connected to the tool box. The beneficial effect of this preferred option is that the addition of a reinforcing rod between the tool box and the traveling box, which are arranged in a figure-eight shape, forms a stable triangular support structure. This significantly enhances the overall rigidity and structural stability of the assembly mechanism, effectively suppresses the deformation and vibration caused by the soil reaction force on the tool during operation, extends the equipment life, and ensures the consistency of tillage depth.

[0012] Preferably, the toolbox is equipped with a support bracket located away from the travel box; the other end of the support bracket is fixedly connected to the bottom of the power unit, and the support bracket is used to support the power unit. The advantage of this preferred embodiment is that the support bracket reduces the engine weight and torque reaction force borne by the spindle box and its drive shaft, thus reducing the risk of spindle box failure. It also further enhances the overall balance and vibration resistance of the machine, especially when operating on sloping terrain.

[0013] A transmission mechanism for a trenching and ridging machine, adapted to the aforementioned assembly mechanism, wherein a main shaft is rotatably connected to the output end of the power unit; a clutch is provided on the side of the main shaft away from the power unit; the connecting section includes an upper connecting section, a main connecting section, and a lower connecting section; an input shaft is provided in the upper connecting section, and the input shaft is connected to the main shaft via the clutch; an upper drive shaft and a lower drive shaft are rotatably connected in the main connecting section, and the upper drive shaft and the lower drive shaft are connected via a spline sleeve; a first bevel gear is provided at the other end of the upper drive shaft, which is connected to a second bevel gear at the other end of the main shaft; the other end of the lower drive shaft is engaged with the mounting shaft of the cutter.

[0014] The principle and beneficial effects of this solution are as follows: power is transmitted to the tool box through the clutch and input shaft; the upper and lower drive shafts are connected inside the box through a spline sleeve, and the transmission direction is changed through the bevel gear set; the spline sleeve allows a certain axial displacement or a certain distance between the upper and lower drive shafts, which can be adapted to drive shafts of different lengths, making it easier to meet different tillage depth requirements; its modular transmission design is compatible with the modular assembly structure.

[0015] Preferably, a travel input shaft is rotatably connected within the travel box, and a third bevel gear is connected to the upper end of the travel input shaft via a bearing; a transmission gear that meshes with the third bevel gear is fixedly mounted on the main shaft; a clutch groove is provided on the side of the third bevel gear away from the transmission gear; a clutch sleeve is connected to the travel input shaft via a spline, and a clutch protrusion is provided on one side of the clutch sleeve; after the clutch sleeve moves up and down along the travel input shaft, it engages and disengages with the clutch groove; the beneficial effect of this preferred embodiment is that the power of the travel box is derived from the transmission gear on the main shaft, and the power supply is controlled by the engagement or disengagement of the third bevel gear and the clutch sleeve. By manipulating the axial movement of the clutch sleeve, the clutch protrusion on it engages or disengages with the clutch groove on the third bevel gear; the clutch function of the travel system is realized; when disengaged, the travel power can be cut off to facilitate dragging or changing work locations; when engaged, stable travel power is provided; this design has a compact structure, is independent of the tool transmission system, and allows the travel and tillage functions to be controlled independently.

[0016] Preferably, a fourth bevel gear is fixedly mounted at the bottom of the travel input shaft; the fourth bevel gear meshes with the drive gear of the travel wheel mounting shaft inside the travel box; the advantage of this preferred embodiment is that power is transmitted from the vertical travel input shaft to the horizontal travel wheel mounting shaft through the fourth bevel gear, completing the final 90-degree power steering and deceleration torque increase; the structure is compact and efficient. The bevel gear transmission can provide reliable torque output, driving the equipment forward.

[0017] Preferably, a handrail is provided at the upper end of the spindle box; two clutch cables are provided on the handrail; the two clutch cables are used to drive the clutch sleeve and the clutch respectively; the beneficial effect of this preferred embodiment is that by centrally arranging two clutch cables on the handrail, which control the clutch of the tool box and the clutch sleeve of the travel box respectively, the ergonomics are optimized, the driver can conveniently operate all clutch functions on the handrail, simplify the operation steps, and improve the safety and convenience of operation.

[0018] The beneficial effects of this utility model are as follows:

[0019] 1. Through modular structure and transmission design, a balance is achieved between flexible adjustment of tillage depth and optimized production cost; through multi-segment variable tool box connecting sections and spline sleeve connected transmission shafts, flexible physical adjustment of tillage depth is achieved; by changing different numbers of connecting sections or adjusting the angle, it can be adapted to the agronomic requirements of different regions and different crops (such as sugarcane, tobacco and other inter-row crops), without the need to open up new production lines for different tillage depths; this significantly improves the adaptability and market coverage of single machines while controlling production costs.

[0020] 2. The "figure-eight" layout of the toolbox and travel box forms a stable basic structure. Based on this, a reinforcing rod forms a stable triangular support between the two, effectively suppressing vibration and deformation caused by the enormous reaction force of the soil on the tools during operation. The support bracket directly transfers part of the power unit's weight to the ground, reducing the load on the spindle box; ensuring consistent tillage depth and operational stability under different terrain and soil conditions, and extending the equipment's lifespan.

[0021] 3. The dual-path independent clutch and centralized control design enhances operational safety and ease of use. In the transmission design, the clutch sleeves of the tool clutch and the travel box are independent of each other and are centrally controlled through two clutch cables on the handrail. This allows the driver to control the power supply of the tool and the travel system separately without taking their hands off the handrail. Attached Figure Description

[0022] Fig. 1 This is a side view schematic diagram of the assembly mechanism of a trenching and ridging machine according to the present invention.

[0023] Fig. 2 This is a cross-sectional schematic diagram of the assembly mechanism of a trenching and ridging machine according to the present invention.

[0024] Explanation of reference numerals in the attached figures:

[0025] Power unit 100, spindle box 200, spindle 201, clutch 202, transmission gear 203; tool box 300, connecting section 301, upper connecting section 3010, main body connecting end 3011, lower connecting section 3012, tool 302, support bracket 303, input shaft 304, upper transmission shaft 305, lower transmission shaft 306, spline sleeve 307, first bevel gear 308, second bevel gear 309; travel box 400, travel input shaft 401, third bevel gear 402, clutch groove 403, clutch sleeve 404, fourth bevel gear 405, reinforcing rod 410, handrail frame 500, clutch cable 501. Detailed Implementation

[0026] The preferred embodiments of this utility model will now be described in detail with reference to the accompanying drawings, so that the advantages and features of this utility model can be more easily understood by those skilled in the art, thereby providing a clearer and more definite definition of the scope of protection of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0027] like Figs. 1-2 As shown:

[0028] A trenching and ridging machine assembly mechanism includes a power unit 100, a main spindle box 200, a tool box 300, and a travel box 400. The power unit 100 is specifically a diesel or gasoline engine. Its output end, on the left side, is connected to one end of the main spindle box 200 via a flange. The bottoms of the left and right sides of the main spindle box 200 are respectively connected to the tool box 300 and the travel box 400 via flanges. The tool box 300 and the travel box 400 are inclinedly mounted on the main spindle box 200 and are arranged in a V-shape. In practice, the tool box 300 includes an upper connecting section 3010, a main connecting section 3011, and a lower connecting section 3012 connected sequentially by flanges. The upper connecting section 3010 is fixedly connected to the spindle box 200, and the lower connecting section 3012 is used for tool mounting. The tool box 300 adopts a multi-segment connecting section 301 design. By changing the number or angle of the connecting sections 301, the ground clearance and tillage depth of the tools can be physically adjusted. The length or number of connecting sections can be changed according to the soil tillage depth requirements of different regions to achieve the effect of coping with different terrains.

[0029] In practice, a reinforcing rod 401 is bolted to one side of the left side of the traveling box 400, and the left end of the reinforcing rod 401 is bolted to the tool box 300. The reinforcing rod 301 is added between the tool box 300 and the traveling box 400, which are arranged in a figure-eight shape, to form a stable triangular support structure. This significantly enhances the overall rigidity and structural stability of the assembly mechanism, effectively suppresses the deformation and vibration caused by the soil reaction force on the tools during operation, extends the service life of the equipment, and ensures the consistency of the tillage depth.

[0030] In specific implementation, the tool box 300 is provided with a support bracket 303 away from the travel box 400; the upper end of the support bracket 303 is fixedly connected to the bottom of the power unit 100, and the upper end of the support bracket 303 is welded or integrally formed with a support plate, which increases the contact area with the power unit 100 and better completes the support; the setting of the support bracket 303 reduces the engine weight and torque reaction force borne by the spindle box 200 and its drive shaft, and reduces the failure risk of the spindle box 200.

[0031] To better adapt to the aforementioned assembly structure, this solution also provides a transmission mechanism for a trenching and ridging machine. The output end of the power unit 100 is rotatably connected to the main shaft 201 via a coupling or reducer. The left end of the main shaft 201 is connected to the clutch 202 via a spline connection. In specific implementation, the upper connecting section 3010 is connected to the input shaft 304 via a bearing, and the input shaft 304 is connected to the main shaft 201 via the clutch 202. The main connecting section 3011 is rotatably connected to the upper drive shaft 305 and the lower drive shaft 306 via a bearing. The upper drive shaft 305 and the lower drive shaft 306 are connected via a spline sleeve 307. The drive shaft of the cutter is designed in segments, which can be adjusted in length according to the actual scenario, thus having a wider range of applications. The upper drive shaft 305 is fixedly provided with a first bevel gear 308, which meshes with the second bevel gear 309 at the left end of the input shaft 304. The lower end of the lower drive shaft 306 is engaged with the mounting shaft of the cutter 302.

[0032] In specific implementation, a travel input shaft 401 is rotatably connected inside the travel box 400, and a third bevel gear 402 is connected to the upper end of the travel input shaft 401 via a bearing; a transmission gear 203 that meshes with the third bevel gear 402 is fixedly mounted on the main shaft 201; a clutch groove 403 is integrally formed at the bottom of the third bevel gear 402; a clutch sleeve 404 is connected to the travel input shaft 401 via a spline, and a clutch protrusion is provided on one side of the clutch sleeve 404; the clutch sleeve 404 moves up and down along the travel input shaft 401, thereby achieving engagement and disengagement with the clutch groove 403; the power of the travel box is taken from the transmission gear 203 on the main shaft 201, and the power is controlled by the engagement or disengagement of the third bevel gear 402 and the clutch sleeve 404. The clutch sleeve is axially moved so that the clutch protrusion on it engages or disengages with the clutch groove 403 on the third bevel gear 402; this realizes the clutch function of the walking system; when disengaged, the walking power can be cut off to facilitate dragging or changing work locations; when engaged, it provides stable walking power; this design is compact and independent of the tool transmission system, so that the walking and tilling functions can be controlled independently.

[0033] In specific implementation, a fourth bevel gear 405 is fixedly installed at the bottom of the walking input shaft 401; the fourth bevel gear 405 cooperates with the drive gear of the walking wheel mounting shaft in the walking box 400; the power is transmitted from the vertical walking input shaft 401 to the horizontal walking wheel mounting shaft through the fourth bevel gear 405, completing the last 90-degree power steering and deceleration torque increase; the structure is compact and efficient.

[0034] The main spindle box 200 is bolted to the upper end of the handrail frame 500. Two clutch cables 501 are installed on the handrail frame 500. The two clutch cables 501 are used to drive the clutch sleeve 404 and the clutch 202 respectively. Using clutch cables to control the clutch operation is a conventional technique for those skilled in the art and will not be described in detail here. Two clutch cables 204 are centrally arranged on the handrail frame 203 to control the clutch 202 of the tool box and the clutch sleeve 404 of the travel box respectively. This achieves ergonomic optimization, allowing the driver to conveniently operate all clutch functions from the handrail, simplifying the operation steps and improving the safety and convenience of operation.

[0035] 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, the scope of which is defined by the appended claims.

Claims

1. A trenching and ridging machine assembly mechanism, comprising a power unit (100), wherein a spindle box (200) is fixedly mounted on the output end of the power unit (100); a tool box (300) and a travel box (400) are respectively connected to both sides of the bottom of the spindle box (200), characterized in that: The tool box (300) and the travel box (400) are inclinedly arranged on the spindle box (200), and the tool box (300) and the travel box (400) are in a figure-eight shape; the tool box (300) includes multiple connecting sections (301) connected in sequence; and the connecting section (301) located at one end of the tool box (300) is fixedly connected to the spindle box (200), and the connecting section (301) at the other end is used for tool (302) installation.

2. The ditching and ridging machine assembly mechanism according to claim 1, characterized in that: A reinforcing rod (410) is fixedly installed between the traveling box (400) and the tool box (300); the two ends of the reinforcing rod (410) are fixedly connected to the tool box (300) and the traveling box (400) respectively.

3. The ditching and ridging machine assembly mechanism according to claim 2, characterized in that: The bottom of the tool box (300) is also provided with a support bracket (303); the other end of the support bracket (303) is fixedly connected to the bottom of the power unit (100), and the support bracket (303) is used to support the power unit (100).

4. A transmission mechanism for a trenching and ridging machine, characterized in that: The assembly mechanism adapted to any one of claims 1-3 includes a main shaft (201) rotatably connected to the output end of the power unit (100); a clutch (202) is provided on the side of the main shaft (201) away from the power unit; the connecting section (301) includes an upper connecting section (3010), a main body connecting section (3011), and a lower connecting section (3012); an input shaft (304) is provided in the upper connecting section (3010), and the input shaft (304) is connected to the main body connecting section (2012) via the clutch (202). The shaft (201) is connected; the upper drive shaft (305) and the lower drive shaft (306) are rotatably connected in the main body connecting section (3011), and the upper drive shaft (305) and the lower drive shaft (306) are connected by a spline sleeve (307); the other end of the upper drive shaft (305) is provided with a first bevel gear (308), which cooperates with the second bevel gear (309) of the input shaft (304); the other end of the lower drive shaft (306) cooperates with the mounting shaft of the tool (302).

5. The transmission mechanism of the trenching and ridging machine according to claim 4, characterized in that: A travel input shaft (401) is rotatably connected inside the travel housing (400). The upper end of the travel input shaft (401) is connected to a third bevel gear (402) via a bearing. A transmission gear (203) that meshes with the third bevel gear (402) is fixedly mounted on the main shaft (201). A clutch groove (403) is provided on the side of the third bevel gear (402) away from the transmission gear (203). A clutch sleeve (404) is connected to the travel input shaft (401) via a spline. A clutch protrusion is provided on one side of the clutch sleeve (404). The clutch sleeve (404) moves up and down along the travel input shaft (401) to engage or disengage with the clutch groove (403).

6. The transmission mechanism of the trenching and ridging machine according to claim 5, characterized in that: A fourth bevel gear (405) is fixedly installed at the bottom of the walking input shaft (401); the fourth bevel gear (405) cooperates with the drive gear of the walking wheel mounting shaft in the walking box (400).

7. The transmission mechanism of the trenching and ridging machine according to claim 5, characterized in that: A handrail (500) is provided at the upper end of the spindle box (200); two clutch cables (501) are provided on the handrail (500); the two clutch cables (501) are used to drive the clutch sleeve (404) and the clutch (202) respectively.

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