A furrow applicator

Abstract

The application provides a furrow fertilizer device, which is installed on a tractor, the tractor is provided with a power output shaft, the furrow fertilizer device is composed of a fertilizer mechanism and a furrow mechanism, and the fertilizer mechanism and the furrow mechanism are simultaneously powered by the power output shaft; the fertilizer mechanism comprises a feeding box, a feeding pipe and a discharging pipe which are connected in sequence, the feeding pipe is provided with a first auger, the fertilizer in the feeding pipe is conveyed to the discharging pipe through a V-shaped conversion pipe by rotation of the first auger, and the fertilizer is discharged by a second auger in the discharging pipe; the furrow mechanism comprises a furrow opener and rotary tiller discs which are installed on the left and right sides of the furrow opener. The application adopts modular design, utilizes the power shaft of the tractor to simultaneously provide power for the fertilizer mechanism and the furrow mechanism, simplifies the structure and is more integrated.

Description

Technical Field

[0001] This invention relates to agricultural machinery, specifically to a trenching and fertilization device. Background Technology

[0002] With the continuous development of modern agriculture, the requirements for mechanization are getting higher and higher. Some regions have already achieved automation of ditching and fertilization. However, our research found that even if some machines integrate ditching and fertilization mechanisms, ditching and fertilization are two separate mechanisms. The ditching mechanism requires one drive mechanism, while the fertilization mechanism requires another drive mechanism. The integration is low, which makes the cost high. Sometimes, fertilization does not use a drive mechanism and only relies on gravity to make the fertilizer fall. The disadvantage of this method is that the inevitable bumps during the vehicle's movement can easily lead to uneven feeding. At the same time, relying solely on gravity for fertilization can easily cause the discharge pipe to become clogged. Summary of the Invention

[0003] This invention provides a trenching and fertilizing device, which is mounted on a tractor vehicle. The tractor vehicle is equipped with a power output shaft. The trenching and fertilizing device consists of a fertilizing mechanism and a trenching mechanism. The power output shaft provides power to both the fertilizing mechanism and the trenching mechanism simultaneously.

[0004] The fertilization mechanism includes a feeding box, a conveying pipe, a V-shaped conversion pipe, and a discharge pipe connected in sequence. Two conveying pipes are symmetrically arranged on the left and right sides of the tractor. Each conveying pipe is equipped with a first auger. The front ends of the two conveying pipes are connected to the bottom opening of the feeding box, and the rear ends of the two conveying pipes are respectively connected to the feed inlets on the left and right sides of the V-shaped conversion pipe. The bottom of the V-shaped conversion pipe is equipped with a discharge outlet connected to the discharge pipe. A second auger is installed in the discharge pipe. The shaft of the second auger is connected to the power output shaft through a first chain. The first chain is also used to drive the two first augers to rotate.

[0005] The ditching mechanism includes a ditcher and rotary tillage discs installed on the left and right sides of the ditcher. The two rotary tillage discs are respectively installed on the two output shafts of a right-angle coupling. The input shaft of the right-angle coupling is connected to the power output shaft via a second chain.

[0006] Furthermore, the upper part of the front end of the conveying pipe connected to the bottom of the feeding box is provided with an opening, and an adjusting cover is slidably provided at the opening to adjust the opening width.

[0007] Furthermore, a mounting bracket is fixed at the rear of the tractor unit, on which the power take-off shaft, the second auger shaft, the right-angle coupling, and the V-shaped conversion tube are all mounted;

[0008] A first output sprocket and a second output sprocket are coaxially mounted on the power output shaft. A discharge sprocket and a rotary tiller sprocket are respectively fixed on the second auger shaft and the rotary tiller drive shaft. The first output sprocket and the second output sprocket are connected to the discharge sprocket and the rotary tiller sprocket via the first chain and the second chain, respectively.

[0009] Furthermore, two driven shafts are provided between the first output sprocket and the discharge sprocket. Each driven shaft is coaxially equipped with a third sprocket and a fourth sprocket. Both third sprockets are engaged with the first chain, and the two fourth sprockets are respectively connected to the two first auger sprockets through the third chain. The two third chains are symmetrically installed in the V-shaped conversion tube, and scrapers are provided on the third chains.

[0010] Furthermore, the trenching fertilization device has an angle adjustment mechanism for adjusting the angle between the discharge pipe and the trenching mechanism and the ground.

[0011] Furthermore, the second auger shaft is connected to the discharge sprocket via the first universal joint coupling;

[0012] The input shaft of the right-angle coupling is connected to the rotary tiller sprocket via the second universal joint coupling, and connecting rods that are rotatably connected to the mounting frame are provided on both sides of the right-angle coupling;

[0013] An electric actuator is provided on the mounting frame. The electric actuator is connected to a right-angle coupling via a first swing arm. The upper end of the first swing arm is rotatably connected to the electric actuator, and the lower end is fixed to the right-angle coupling. A second swing arm is connected between the right-angle coupling and the discharge pipe. The two ends of the second swing arm are rotatably connected to the right-angle coupling and the discharge pipe.

[0014] Furthermore, curved guard plates located above the rotary tiller disc are fixed on both sides of the right-angle coupling.

[0015] The advantages of this invention are:

[0016] 1) The modular design is adopted. The mechanism itself has no power. After the invention is installed at the rear of the tractor, the power shaft of the tractor is used to provide power to both the fertilization mechanism and the trenching mechanism at the same time, which simplifies the structure and increases the integration.

[0017] 2) Fertilizer from the feeding hopper falls into the conveying pipe through the bottom opening and is conveyed backward by the first auger. Fertilizer from both conveying pipes falls into the discharge pipe through the V-shaped conversion pipe and is conveyed backward by the second auger to the ground. This invention uses an auger to convey fertilizer from the front feeding hopper backward, avoiding fertilizer blockage in the pipes, resulting in more uniform fertilizer discharge. The auger speed can also be adjusted to regulate the fertilization speed.

[0018] 3) The ditching mechanism can be adjusted to the angle with the ground, which makes it easy to adjust the ditching depth. The material conveying pipe and the ditching mechanism are linked. When the ditching mechanism is adjusted, the material conveying pipe will swing synchronously, making the fertilizer fall into the position more accurately. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 A side view of a trenching and fertilizing device provided by the present invention;

[0021] Figure 2 for Figure 1 Top view;

[0022] Figure 3 A schematic diagram of the tail section of the trenching and fertilizing device;

[0023] Figure 4 A side view of the tail section of the trenching and fertilizing device;

[0024] Figure 5 for Figure 4 Top view;

[0025] Figure 6 This is a schematic diagram of the driving principle of the fertilizer application mechanism;

[0026] Figure 7 for Figure 6 A schematic diagram of a partial structure;

[0027] Figure 8 This is a schematic diagram of the feed pipe in one embodiment. Detailed Implementation

[0028] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the invention. However, it will be apparent to those skilled in the art that the invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid obscuring the invention.

[0029] To fully understand this invention, detailed steps and structures will be presented in the following description to illustrate the technical solution of this invention. Preferred embodiments of the invention are described in detail below; however, in addition to these detailed descriptions, the invention may have other embodiments.

[0030] The present invention provides a trenching and fertilizing device, which is installed at the rear of a tractor vehicle. The tractor vehicle is equipped with a power output shaft 130. The trenching and fertilizing device consists of a fertilizing mechanism 400 and a trenching mechanism 500. The power output shaft 130 provides power to both the fertilizing mechanism 400 and the trenching mechanism 500.

[0031] The fertilizer application mechanism 400 includes a feeding box 403, a conveying pipe 401, and a discharge pipe 402. The conveying pipes 401 are symmetrically arranged on the left and right sides of the tractor. Each conveying pipe 401 is equipped with a first auger 401-1. The front ends of the two conveying pipes 401 are connected to the bottom opening of the feeding box 403, and the rear ends of the two conveying pipes 401 are connected to the feed inlets on the left and right sides of the V-shaped conversion pipe 404. The bottom of the V-shaped conversion pipe 404 is provided with an opening that connects to the discharge pipe 402. The rotation of the first auger 401-1 transports the fertilizer in the conveying pipe 401 through the V-shaped conversion pipe 404 to the discharge pipe 402. A second auger is provided in the discharge pipe 402. One end of the second auger shaft 402-2 is provided with a discharge sprocket 402-3. The discharge sprocket 402-3 is connected to the power output shaft 130 through the first chain 150. The first chain 150 is also used to drive the two first augers 401-1 to rotate.

[0032] The ditching mechanism 500 includes a ditcher 501 and rotary tillage discs 502 installed on the left and right sides of the ditcher 501. The two rotary tillage discs 502 are respectively installed on the two output shafts of a right-angle coupling 504, as shown in the figure. The right-angle coupling 504 has one input shaft and two output shafts. The input shaft of the right-angle coupling 504 is connected to the power output shaft 130 through a second chain. The ditcher 501 is fixed on the tail end housing of the right-angle coupling 504.

[0033] When using, put this Figure 1 The device shown is fixed to the frame of a tractor. During the movement of the tractor, the power output shaft 130 of the motor / internal combustion engine / gearbox mounted on the tractor simultaneously drives the fertilization mechanism 400 and the ditching mechanism 500. Fertilizer in the feeding box 403 falls into the conveying pipe 401 and is conveyed forward by the first auger 401-1 in the conveying pipe 401. Fertilizer in the two conveying pipes 401 falls into the discharge pipe 402 through the V-shaped conversion pipe 404 and is conveyed backward by the second auger (not shown inside the discharge pipe 402) and falls to the ground. This invention can drive the fertilization mechanism 400 and the ditching mechanism 500 with a single power shaft, simultaneously meeting the needs of ditching and fertilization. Furthermore, since the present invention is detachably installed at the rear of the vehicle, if the feeding box 403 is also placed at the rear of the vehicle, it will cause the rear to be too heavy and affect stability. Therefore, the present invention adopts a front-mounted feeding box 403, which is installed at the front end of the traction component and the fertilizer is transported to the rear through the conveying pipe 401 and the discharge pipe 402, which is beneficial to balance the weight.

[0034] In an optional embodiment, the upper part of the front end of the conveying pipe 401, which is connected to the bottom of the feeding box 403, is provided with an opening 401-4, and an adjusting cover 401-2 is slidably provided at the opening 401-4. By sliding the adjusting cover 401-2, the opening width of the opening 401-4 can be adjusted, thereby adjusting the speed at which fertilizer falls into the conveying pipe 401. Figure 8 As shown.

[0035] In an optional embodiment, a mounting bracket 410 is fixed to the rear of the tractor unit. The input shafts of the power output shaft 130, the second auger shaft 402-2, and the rotary tiller drive shaft 504 are rotatably mounted on the mounting bracket 410, and the V-shaped conversion tube 404 is fixed on the mounting bracket 410. Figure 6-7 As shown, a first output sprocket 130-1 and a second output sprocket 130-2 are coaxially mounted on the power output shaft 130. The first output sprocket 130-1 and the second output sprocket 130-2 are respectively connected to the discharge sprocket 402-3 and the rotary tiller sprocket 504-1 via the first chain 150 and the second chain, respectively.

[0036] Reference Figure 5-7 As shown, the structure of the first chain 150 driving the two first augers 401-1 to rotate is as follows: Two driven shafts 140 are provided between the first output sprocket 130-1 and the discharge sprocket 402-3. Each driven shaft 140 is coaxially equipped with a third sprocket 141 and a fourth sprocket 142. Both third sprockets 141 engage with the first chain 150, and the two fourth sprockets 142 are respectively connected to the two first auger sprockets 401-3 via third chains 160. The two third chains 160 are symmetrically installed in the V-shaped conversion tube 404, and scrapers 161 (such as...) are provided on the third chains 160. Figure 6 The principle is as follows: while the first chain 150 drives the second auger to rotate, it also drives the two driven shafts 140 to rotate in the same direction. The fourth sprockets 142 on the two driven shafts 140 drive the two first augers 401-1 to rotate through the third chain 160, thereby conveying the fertilizer that falls into the conveying pipe 401 forward and into the V-shaped conversion pipe 404. The third chain 160 rotates in the V-shaped conversion pipe 404 and scrapes the fertilizer to the bottom outlet of the V-shaped conversion pipe 404 through the scraper 161, and finally falls into the conveying pipe 401.

[0037] Two first output sprockets 130-1 are fixed on the power output shaft 130. Correspondingly, two discharge sprockets 402-3 are also provided on the second auger shaft 402-2. The second auger and the driven shaft 140 are driven by a double chain, making the transmission more stable and robust. It should be noted that all the above chain and sprocket drive mechanisms can also be replaced with belt and pulley drives.

[0038] In an optional embodiment, the trenching fertilization device is provided with an angle adjustment mechanism for adjusting the angle between the discharge pipe 402 and the trenching mechanism 500 and the ground. Figure 3-4 As shown, the specific structure of the angle adjustment mechanism is as follows:

[0039] 1) The second auger shaft 402-2 is connected to the discharge sprocket 402-3 through the first universal joint coupling 402-2a.

[0040] 2) The input shaft of the right-angle coupling 504 is connected to the rotary tiller sprocket 504-1 via the second universal joint coupling 504-2a. Connecting rods 505, rotatably connected to the mounting frame 410, are provided on both sides of the right-angle coupling 504. The front end of the connecting rod 505 is rotatably connected to the mounting frame 410, and the rear end is fixedly connected to the right-angle coupling 504. An electric actuator 420 is provided on the mounting frame 410. One end of the electric actuator 420 is rotatably connected to the mounting frame 410, and the other end is connected to the right-angle coupling 504 via a first rocker arm 421. The upper end of the first rocker arm 421 is rotatably connected to the electric actuator 420, and the lower end is fixed to the right-angle coupling 504. A second rocker arm 506 is connected between the right-angle coupling 504 and the discharge pipe 402. Both ends of the second rocker arm 506 are rotatably connected to the right-angle coupling 504 and the discharge pipe 402.

[0041] When the angle needs to be adjusted, the electric actuator 420 pushes the first swing arm 421 forward or backward to make the trenching mechanism 500 swing up and down, thereby changing the trenching depth; and while the trenching mechanism 500 swings, it also drives the discharge pipe 402 to tilt down or up synchronously through the second swing arm 506, so that the relative position of the discharge port at the rear end of the discharge pipe 402 and the trencher remains unchanged, and the fertilizer falling position is more accurate.

[0042] In an optional embodiment, arc-shaped guard plates 508 are fixed on both sides of the right-angle coupling 504, located above the rotary tiller disc 502. When the rotary tiller disc 502 is working, the soil thrown up by it impacts the arc-shaped guard plates 508 and falls naturally. The rear end of the connecting rod 505 is fixed to the arc-shaped guard plate 508.

[0043] The preferred embodiments of the present invention have been described above. It should be understood that the present invention is not limited to the specific embodiments described above, and the devices and structures not described in detail should be understood as being implemented in a conventional manner in the art. Any person skilled in the art can make many possible variations and modifications to the technical solutions of the present invention using the methods and techniques disclosed above, or modify them into equivalent embodiments with equivalent changes, without departing from the scope of the present invention. This does not affect the essential content of the present invention. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the present invention are still within the scope of protection of the present invention.

Claims

1. A trenching and fertilizing device, wherein the trenching and fertilizing device is detachably mounted on a tractor, the tractor being provided with a power output shaft (130), characterized in that, The trenching and fertilizing device consists of a fertilizing mechanism (400) and a trenching mechanism (500), and a power output shaft (130) provides power to both the fertilizing mechanism (400) and the trenching mechanism (500). The fertilizer application mechanism (400) includes a feeding box (403), a conveying pipe (401), a V-shaped conversion pipe (404), and a discharge pipe (402) connected in sequence. Two conveying pipes (401) are symmetrically arranged on the left and right sides of the tractor. Each conveying pipe (401) is equipped with a first auger (401-1). The front ends of the two conveying pipes (401) are connected to the bottom opening of the feeding box (403). The rear ends of the two conveying pipes (401) are respectively connected to the feed inlets on the left and right sides of the V-shaped conversion pipe (404). The bottom of the V-shaped conversion pipe (404) is equipped with a discharge port connected to the discharge pipe (402). A second auger is provided in the discharge pipe (402). The shaft of the second auger is connected to the power output shaft (130) through a first chain (150). The first chain (150) is also used to drive the two first augers (401-1) to rotate. The ditching mechanism (500) includes a ditcher (501) and rotary tillage cutters (502) installed on the left and right sides of the ditcher (501). The two rotary tillage cutters (502) are respectively installed on the two output shafts of a right-angle coupling (504). The input shaft of the right-angle coupling (504) is connected to the power output shaft (130) via a second chain. A mounting bracket (410) is fixed at the rear of the tractor. The power output shaft (130), the second auger shaft (402-2), and the input shaft of the right-angle coupling (504) are all rotatably mounted on the mounting bracket (410), and the V-shaped conversion tube (404) is fixed on the mounting bracket (410). The first output sprocket (130-1) and the second output sprocket (130-2) are coaxially mounted on the power output shaft (130). The second auger shaft (402-2) and the input shaft of the right-angle coupling (504) are respectively fixed with the second auger sprocket (402-3) and the rotary tiller sprocket (504-1). The first output sprocket (130-1) and the second output sprocket (130-2) are respectively connected to the second auger sprocket (402-3) and the rotary tiller sprocket (504-1) through the first chain (150) and the second chain, respectively. Two driven shafts (140) are provided between the first output sprocket (130-1) and the second auger sprocket (402-3). Each driven shaft (140) is coaxially provided with a third sprocket (141) and a fourth sprocket (142). Both third sprockets (141) are engaged with the first chain (150), and the two fourth sprockets (142) are respectively connected to the two first auger sprockets (401-3) through the third chain (160). The two third chains (160) are symmetrically installed in the V-shaped conversion tube (404), and scrapers (161) are provided on the third chains (160).

2. The trenching and fertilization device as described in claim 1, characterized in that, The upper part of the front end of the conveying pipe (401) connected to the bottom of the feeding box (403) is provided with an opening (401-4), and an adjusting cover (401-2) is slidably provided at the opening (401-4) to adjust the opening width of the opening (401-4).

3. The trenching and fertilization device as described in claim 1, characterized in that, The trenching and fertilizing device is equipped with an angle adjustment mechanism for adjusting the angle between the discharge pipe (402) and the trenching mechanism (500) and the ground.

4. The trenching and fertilization device as described in claim 1, characterized in that, The second auger shaft (402-2) is connected to the second auger sprocket (402-3) via the first universal joint coupling (402-2a); The input shaft of the right-angle coupling (504) is connected to the rotary tiller sprocket (504-1) through the second universal joint coupling (504-2a). There are connecting rods (505) on both sides of the right-angle coupling (504) that are rotatably connected to the mounting bracket (410). An electric actuator (420) is provided on the mounting frame (410). One end of the electric actuator (420) is rotatably connected to the mounting frame (410), and the other end is connected to the right-angle coupling (504) through the first rocker arm (421). The upper end of the first rocker arm (421) is rotatably connected to the electric actuator (420), and the lower end is fixed on the right-angle coupling (504). A second rocker arm (506) is connected between the right-angle coupling (504) and the discharge pipe (402). Both ends of the second rocker arm (506) are rotatably connected to the right-angle coupling (504) and the discharge pipe (402).

5. The trenching and fertilization device as described in claim 4, characterized in that, Arc-shaped guard plates (508) are fixed on both sides of the right-angle coupling (504) above the rotary tiller disc (502).

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