Double-disc furrow opener

Abstract

The utility model belongs to the field of furrow openers, and provides a double-disc furrow opener which comprises a fixed seat, a pair of left and right adjusting assemblies are arranged on the fixed seat, each adjusting assembly comprises an adjusting seat, a fixed plate is arranged at the front end of each adjusting seat in a backward rotating mode, an adjusting groove is formed in the rear end of each adjusting seat, and the adjusting grooves are communicated with the fixed plates. A short plate is rotationally arranged on the fixing plate, an adjusting plate is rotationally arranged on the short plate, the adjusting plate is located in the adjusting seat, a locking screw is arranged on the adjusting plate, the locking screw penetrates out of the adjusting groove and then is screwed into a locking nut for locking, a threaded shaft is rotationally arranged on the fixing plate, and a baffle is fixed to the threaded shaft. After the ditching disc with a smaller size is replaced, the size of the replaced ditching disc is smaller than that of the front two ditching discs, so that the gap between the front ends of the replaced ditching disc is slightly larger than that of the front two ditching discs, the angle of the fixing plate is finely adjusted through the adjusting assembly, and the two ditching discs inwards rotate in a small range; and the gap at the front end of the ditching disc is adjusted.

Description

Technical Field

[0001] This utility model belongs to the field of trenchers, and particularly relates to a double-disc trencher. Background Technology

[0002] In the mechanized rice cultivation process, ditching is a crucial step in field water management, root aeration, and other agricultural operations. Due to long-term water storage cultivation, paddy fields exhibit high soil moisture content and high cohesion. Furthermore, the requirements for ditch depth and width vary significantly at different growth stages (e.g., shallow ditches are needed for water control during the tillering stage, while deep ditches are needed for drainage during the booting stage). This places higher demands on the adaptability, precise depth adjustment capabilities, and anti-clogging performance of ditching equipment.

[0003] In practice, there is usually a small gap between the front ends of the two trenching discs. Therefore, the size of the two trenching discs in the trencher cannot be changed according to the trenching depth requirements, and the distance between the front ends of the two trenching discs cannot be adjusted. Utility Model Content

[0004] In view of the above problems, the purpose of this utility model is to provide a double-disc trencher, which aims to solve the problems of existing double-disc trenchers where the size of the two trenching discs cannot be changed according to the trenching depth requirements, and the distance between the front ends of the two trenching discs cannot be adjusted.

[0005] The present invention adopts the following technical solution:

[0006] The double-disc trencher includes a fixed base, on which a pair of left and right adjusting components are provided. Each adjusting component includes an adjusting seat, a fixed plate that rotates rearward at the front end of the adjusting seat, and an adjusting groove at the rear end of the adjusting seat. A short plate is rotatably provided on the fixed plate, and an adjusting plate is rotatably provided on the short plate. The adjusting plate is located inside the adjusting seat and is provided with a locking screw. The locking screw passes through the adjusting groove and is screwed into a locking nut for locking. A threaded shaft is rotatably provided on the fixed plate, and a baffle is fixed on the threaded shaft. A trenching disc is also inserted through the threaded shaft and a locking sleeve is screwed on it.

[0007] Furthermore, the fixed base is provided with a square column facing upwards, and a pair of upper and lower stops are provided on the square column, wherein the upper stop is slidably installed and the lower stop is fixedly installed. A spring is provided on the square column between the two stops, and a connecting seat is provided on the square column above the upper stop for sliding limitation.

[0008] Furthermore, a round hole is opened on the top of the square column, and a pair of oval grooves are opened on the connecting seat. A limiting screw is inserted into one of the oval grooves. The limiting screw passes through the round hole and exits from the other oval groove. A limiting hole is opened at the end of the limiting screw. A washer is inserted into the end of the limiting nut. A type 7 insert rod for limiting the washer is inserted into the limiting hole.

[0009] Furthermore, a C-shaped fixing seat is formed on the connecting seat.

[0010] The beneficial effects of this utility model are:

[0011] 1. The installation of grooved discs of different sizes can be adapted to by slightly rotating the fixing plate by adjusting the installation position of the adjusting plate.

[0012] 2. When encountering undulating terrain, the four-sided column slides up and down within the connecting seat, and the spring deforms. The spring force can buffer the vibration of the machine, ensuring the stability of the trenching depth and reducing the damage to the parts caused by rigid impact. Attached Figure Description

[0013] Figure 1 This utility model provides an overall view of a double-disc trencher.

[0014] Figure 2 This utility model provides a schematic diagram for motherboard installation.

[0015] Figure 3 This utility model provides a schematic diagram for installing an FPC antenna.

[0016] Figure 4 This utility model provides a schematic diagram of the interior of the housing. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this utility model patent clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the scope of the present utility model.

[0018] To illustrate the technical solution described in this utility model, specific embodiments are described below.

[0019] For ease of explanation, only the parts relevant to the embodiments of this utility model are shown.

[0020] Combination Figure 1-4 As shown, the double-disc trencher includes a fixed base 1, on which a pair of left and right adjustment components are provided. Each adjustment component includes an adjustment base 2, with a fixed plate 3 rotatably mounted at the front end of the adjustment base 2 facing backward. An adjustment groove 4 is opened at the rear end of the adjustment base 2. A short plate 5 is rotatably mounted on the fixed plate 3, and an adjustment plate 6 is rotatably mounted on the short plate 5. The adjustment plate 6 is located inside the adjustment base 2 and is provided with a locking screw 7. The locking screw 7 passes through the adjustment groove 4 and is screwed into a locking nut 8 for locking. A threaded shaft 9 is rotatably mounted on the fixed plate 3. A baffle 10 is fixed on the threaded shaft 9, and a trenching disc 11 is also inserted into the threaded shaft 9 and screwed with a locking sleeve 12.

[0021] In practice, there is usually a small gap between the front ends of the two trenching discs. Therefore, the size of the two trenching discs in a trencher generally cannot be changed according to the required trenching depth. This double-disc trencher includes a fixed base, on both sides of which are equipped with adjusting components. Each adjusting component has a trenching disc. The adjusting component includes an adjusting seat, on which a fixed plate is rotatably mounted. A threaded shaft is rotatably mounted on the fixed plate, and the threaded shaft has a trenching disc mounted on it.

[0022] In the above structure, the installation of grooved discs of different sizes can be accommodated by slightly rotating the fixing plate by adjusting the installation position of the adjusting plate. For example, when replacing a smaller grooved disc, the two locking sleeves on the left and right sides can be unscrewed one after the other, removing the two grooved discs. Then, the smaller grooved disc is replaced. Since the replaced grooved disc is smaller than the previous two, the gap at the front end of the replaced grooved disc is slightly larger than the gap between the previous two. The gap between the front ends of the two grooved discs can be adjusted by slightly rotating the fixing plate inwards through the adjusting component. Similarly, when replacing a larger grooved disc, the angle of the fixing plate must be adjusted first.

[0023] Specifically: First, loosen the locking nut, then rotate the rear end of the grooved disc outwards while rotating the front end inwards until both grooved discs are in the correct positions. Then tighten the locking nut, fixing the two grooved discs in place. During the adjustment of the grooved disc's installation angle, the locking nut moves within the adjustment groove, which limits and guides the locking nut, ensuring a more stable adjustment process. Similarly, the distance between the front ends of the two grooved discs can be adjusted by fine-tuning the angle of the left and right fixing plates using the adjustment assembly.

[0024] As a specific structure, the fixed base 1 is provided with a square column 13 facing upward, and a pair of upper and lower stop seats 14 are provided on the square column 13, wherein the upper stop seat is slidably installed and the lower stop seat is fixedly installed. A spring 15 is provided on the square column 13 between the two stop seats 14, and a connecting seat 16 is provided on the square column 13 above the upper stop seat for sliding limitation.

[0025] The fixed base is equipped with a square post, and a connecting assembly is located above the square post. The furrow opener is installed on the seeder via the connecting assembly. When the furrow opener is performing furrowing work, if it encounters undulating terrain, the square post slides up and down within the connecting base, and the spring deforms. The spring force can buffer the vibration of the implement, ensuring the stability of the furrowing depth and reducing the damage to the components caused by rigid impacts.

[0026] In this structure, a round hole (obscured in the figure) is opened on the top of the square column 13, and a pair of oval grooves 17 are opened on the connecting seat 16. A limiting screw 18 is inserted into one of the oval grooves 17. The limiting screw 18 passes through the round hole and exits from the other oval groove 17. A limiting hole is opened at the end of the limiting screw 18. A washer 20 is inserted into the end of the limiting nut 18. A type 7 insert 21 for limiting the washer 20 is inserted into the limiting hole.

[0027] In this structure, the limiting nut serves two purposes: firstly, it mounts the square post; secondly, it limits the vertical movement of the square post within the connecting seat. It also allows the square post to be removed from the connecting seat. Specifically: simply remove the type 7 insert, then remove the washer, then pull out the limiting nut, and finally pull the connecting seat upwards.

[0028] A C-shaped fixing seat 22 is formed on the connecting seat 16. The C-shaped fixing seat can limit the installation on the suspension frame or crossbeam of the agricultural machinery.

[0029] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A dual-disk opener characterized by: The double-disc furrow opener comprises a fixed seat, a left and right pair of adjusting assemblies are arranged on the fixed seat, the adjusting assembly comprises an adjusting seat, a fixed plate is arranged on the front end of the adjusting seat and rotates rearward, an adjusting groove is arranged on the rear end of the adjusting seat, a short plate is arranged on the fixed plate and rotates, an adjusting plate is arranged on the short plate and rotates, the adjusting plate is located in the adjusting seat, a locking screw is arranged on the adjusting plate, the locking screw passes through the adjusting groove and is screwed into a locking nut for locking, a threaded shaft is arranged on the fixed plate and rotates, a baffle is fixed on the threaded shaft, a furrow disc is arranged on the threaded shaft and screwed into a locking sleeve.

2. The dual-disk opener of claim 1 wherein: The fixed seat is upwardly provided with a square column, a pair of upper and lower stoppers are arranged on the square column, the upper stopper is slidingly installed and the lower stopper is fixedly installed, a spring is arranged between the two stoppers on the square column, and a connecting seat is slidingly and limitingly arranged above the upper stopper.

3. The dual-disk opener of claim 2 wherein: A circular hole is formed above the square column, the connecting seat is provided with a pair of waist circular grooves, one of the waist circular grooves is arranged to pass through a limiting screw, the limiting screw passes through the circular hole and is arranged to pass out from the other waist circular groove, the end of the limiting screw is provided with a limiting hole, the end of the limiting screw is arranged to pass through a gasket, and a type 7 insertion rod for limiting the gasket is arranged to pass through the limiting hole.

4. The dual-disk opener of claim 3 wherein: The connecting seat is formed with a C-shaped fixed seat.

Images